Electric butterfly valve is a circular disc for opening and closing member and with the rotation of the stem to open, close and adjust a valve fluid passage. Butterfly not only simple in structure, small size, light weight, material consumption province, installation of small size, and the drive torque is small, simple, rapid, and also at the same time has a good flow regulation and off the sealing characteristics, in medium and large caliber, the the use of low pressure areas, butterfly valve is the leading form.

     Electric Butterfly (English name: Electronic Butterfly Valve), is an electric valve and electric control valve in one of the main electric butterfly valve connection: flange and wafer type, according to the transmission mode can be divided into manual, gear transmission, pneumatic , hydraulic and electric several, industrial automation and control important execution units.